I'll spare you the details but I stayed with air for a while. Then I decided to try and mine some LITECoins (and maybe others as I read more). The cards arrived today (Ordered on the weekend). But I did not order the other parts I need yet (Not happy with myself on that one!)

YES I will be using the car radiator. Also this first timer realized if I set up the car rad in a certain way I no longer need a reservoir for my cooling system

After shelling out for a pair of Liquid cooled 290x's at their grossly inflated price I literally cannot afford to not get the water cooling ASAP! STAY TUNED FOLKS. It's finally happening!